Fire-escape.



1 Patented July 29, |902; R. HAMMERLY.

No. 70s-,530.

Fmr-z ESCAPE, (Application led May 2, 1902.?

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ma Nonms persas cn,. imam-Hm msmnnrow. n c4 UNITED STATES PATENT OFFICE.

RICHARD I-IAMMERLY, OF NEW YORK, N. Y.

FIRE-ESCAPE.

SPECIFICATION forming part of Letters Patent No. 705,580, dated July 29, 1902.

Application iiled May 2, 1902. Serial No. 105,573. (No model.)

To au whom it may concern:`

Be it known that I, RICHARD HAMMERLY, a citizen of the United States, and a resident of New York city, county and-State of New` 5 York, have invented certain new and useful Improvements in Fire-Escapes, of which the following is a specification.

This invention relates to a fire-escape which can be readily manipulated and by which a safe and easy descent may be accomplished.

In the accompanying drawings, Figure l is a front view of my improvedre-escape 5 Fig. 2, a side view thereof; Fig. 3, a rear view; Fig. 4, a section on line 4 4, Fig. 3; and Fig. 5, a detail of the brake-shoe.

The letter a represents a frame or casing traversed from side toside by an open tube Z7. Thistube is provided within the frame at its ends with oppositely-placed tapering shoulders or abutmentsb, that guide the rope A in parallel coils around the tube, the maximum thickness of the abutment being equal, substantially, to the thickness of the rope. The rope A enters the casing a through an upper tubular guide c,is thence wound around the tube b between the abutments b', and leaves the casing through a lower tubular guide d, arranged diametrically opposite the guide c.

The guide c contains a removable curved brake-shoe e, Fig. 5, which is provided with a laterally-projecting pin e', that enters a perforation c of theguide c. Above the perforation c the guide c is provided with asecond tapped perforation, which is engaged by a setscrew f, that impinges against the shoe. By manipulating this set-screw the shoe is forced against the rope to regulate the speed of the descent. The pin e serves to hold the brakeshoe in position and permits its ready renewal when worn.

:The lower guide d containsa brake-shoe g, similar in all respects to the shoe @,-it being provided with a pin g,fentering perforation d of guide d and being set by means of a screw h.

The rope A is suspended from the window to the ground, and the person descending is suspended from the frame a by means of a rope Bpassing through the tube b. In lowering himself the person slackens the lower set-screw h and regulates his descent by the upper set-screw f, so that the frame will glide gradually down along the rope A. When the descent has been accomplished, the rope is pulled up and reversed and the screw f is slackened, when the apparatus is in condition fora second descent.

What I claim is- 4 l. A fire-escape composed of a frame, a transverselyextending tube, a weight-sustaining rope passing through the tube, a suspending-rope coiled around the tube, ropeguides at opposite ends of the frame, and brakes within said guides, substantially as specified.

2. A hre-escape composed of a frame, a transversely-extending tube, a weight-sustaining rope passing through the tube, a suspending-rope coiled around the tube, perforated tubular rope-guides at opposite ends of the frame, removable brake-shoes having laterally-extendin g pins engaging the rope-guide perforations, and set-screws engaging the shoes, substantially asv specified.

Signed by me at New York city, New York, this lst day of May, 1902.

RICHARD HAMMERLY.

Witnesses:

WM. SCHULZ, F. v. BRIESEN. 

